HELP! 3 way mb quart install in front doors!

[djbrkb]

hey there,

 

i have an 01 yukon and have recently bought mb quart psd-316 3-way components (6.5" woofer, 4" mid, 1" tweet) for front door/a-pillar mounting. i have seen some people mount the 4" mid in place of the factory tweet location under the factory front door grills. this is what i would like to do. after taking the door apart last night it seems that some mechanicals/bracing might be in the way. how has anyone done this? unlike the oem woofer, were both the new 6.5" and 4" speakers mounted on top of the door panels (not to the door frame)? were spacers then used for the mid to avoid having to cut into the door? or were you able to cut into the door here?

 

also, for now i plan to use stock power. i noticed that there are two speaker pairs coming into the door for the stock tweet and woofer. where does this originate from? i'm looking for the front right and left speaker pairs that have been amplified but not crossed over yet to send into the mb quart x-over. does anyone know where that is?

 

does anyone have the stock stereo/speakers wiring diagram?

 

oh, btw: if it matters, i do NOT have the bose system

 

any help would be greatly appreciated.

thanks in advance, david

[Wingnut]

You're going to run MB Quart off of the stock system? That's like running a Ferrari with the engine out of a moped.

 

Not sure about how to mount that many (of that size) speakers in the doors, but you'll probably need some reinforcement. Mounting that many speakers in that cheap-a$$ed particle wood in the doors is a recipe for lots of rattles in the doors from hanging speakers.

 

For basic wire colors, go to installdr.com.

[djbrkb]

thanks for the feedback.

yeah, i know i should use an amp. the speakers, although a great deal, were kinda pricey. so, i figure i'll install them and hook them up - if they sound crappy i'll then look for an amp. i knew i would eventually end up there anyway. i have seen a few of our trucks on the net with this setup in the past - i'm just trying to get some input from any one of them. i agree, mounting on the door panel is not ideal - again, just need some help from someone who has done this before.

 

also, thanks for the lead with the wiring - but i have that info already.

i'm looking for the factory wiring diagram of where the speaker wires are coming from (via an outboard amp that is doing the x-over?), and where this amp might be located.

if the head unit is powered (IS IT?), i can just take the right and left front wires out of the head unit, but the fact that they split into highs and lows somewhere in between the head and the door speakers is leaving me scratching my head. thanks again! david

[mmmikkke]

hey there,

 

i have an 01 yukon and have recently bought mb quart psd-316 3-way components (6.5" woofer, 4" mid, 1" tweet) for front door/a-pillar mounting. i have seen some people mount the 4" mid in place of the factory tweet location under the factory front door grills. this is what i would like to do. after taking the door apart last night it seems that some mechanicals/bracing might be in the way. how has anyone done this? unlike the oem woofer, were both the new 6.5" and 4" speakers mounted on top of the door panels (not to the door frame)? were spacers then used for the mid to avoid having to cut into the door? or were you able to cut into the door here?

 

also, for now i plan to use stock power. i noticed that there are two speaker pairs coming into the door for the stock tweet and woofer. where does this originate from? i'm looking for the front right and left speaker pairs that have been amplified but not crossed over yet to send into the mb quart x-over. does anyone know where that is?

 

does anyone have the stock stereo/speakers wiring diagram?

 

oh, btw: if it matters, i do NOT have the bose system

 

any help would be greatly appreciated.

thanks in advance, david

 

<{POST_SNAPBACK}>

 

 

The 6.5's mount to the metal of the door, and the factory tweeters are mounted to the fiberglass-reinforced-plastic door panel. I mounted a pair of tweeters where the factory tweeters used to be, which is where you plan to mount your mid's. I fabricated a bracket that mounted to the factory tweeter mounting screws on the back side, got some plastic screw-head-hiders from the parts drawer at Home Depot, and put everything together and you can't see the screws from outside the factory grills.

 

The factory grills remove by unbending the tabs all the way around. Be careful, because if you bend and unbend them a few times, they might weaken. Best to only take them off once.

 

You won't have a buzzing problem from the mid's. Their frequencies are high enough that there is not much excursion there, so if it were me, I'd proceed with the plan you have outlined above. I might consider however, also mounting your tweeters in there...there's plenty of room, and then you won't be bastardizing your A pillars, and you'll be able to wire your MBQ crossovers without a lot of head scratching.

 

For the 6.5" woofers, you'll want to fabricate some sort of thick gasket to keep the bass from the back side of the speaker from making it around to the front. The door panels have a moulded plastic circle that mates up with a similar foam gasket on the factory speakers (which are mounted to the door). When you replace those factory woofers with your MBQ's, you'll want to duplicate what they did from the factory.

 

The factory wiring to both the woofer and the tweeter is full-range to both locations. Even though you see 2 different connectors, they carry the same signal. The woofer just shrugs off the high frequencies; the tweeter wiring gets cheezily-bass-blocked at the tweeter--that's their crossover. So you take the the female plug off the factory woofer, and attach it to the MBQ crossover, and then run new wire to the mid and tweeter from there, you can will need some sort of connector on the wires to the mid and tweet so you will be able to remove the door panel in the future. Would also be good you make the connections obvious, so that if 5 years down the road the power window stops working, the technician (who knows, might be you...) will be able to fix it.

 

You should de-wire the factory head unit for a test, and use a battery and the old woofer to confirm the speaker wiring polarity of the connector you end up using.

 

Click on "view vehicles" on my sig to the left, and there are a few pics that show you what my setup is.

 

Ask more questions, I'll give more answers.

[djbrkb]

hey thanks mike!

the wiring info was a big help! the speaker setup i'm going with doesn't jive with your setup, but sincere thanks for the time and effort!! my setup has

(1) 6.5" woofer, (1) 4" midrange, and (1) tweeter. the new 4" midrange now resides where the factory door tweeter used to be. the new tweeter now resides in the a-pillar.

hey, 1/2 hour of detoilet?? i live 45 mins north of detoilet (rochester hills) maybe i'll see you around.

thanks again!

david

 

hey there,

 

i have an 01 yukon and have recently bought mb quart psd-316 3-way components (6.5" woofer, 4" mid, 1" tweet) for front door/a-pillar mounting. i have seen some people mount the 4" mid in place of the factory tweet location under the factory front door grills. this is what i would like to do. after taking the door apart last night it seems that some mechanicals/bracing might be in the way. how has anyone done this? unlike the oem woofer, were both the new 6.5" and 4" speakers mounted on top of the door panels (not to the door frame)? were spacers then used for the mid to avoid having to cut into the door? or were you able to cut into the door here?

 

also, for now i plan to use stock power. i noticed that there are two speaker pairs coming into the door for the stock tweet and woofer. where does this originate from? i'm looking for the front right and left speaker pairs that have been amplified but not crossed over yet to send into the mb quart x-over. does anyone know where that is?

 

does anyone have the stock stereo/speakers wiring diagram?

 

oh, btw: if it matters, i do NOT have the bose system

 

any help would be greatly appreciated.

thanks in advance, david

 

<{POST_SNAPBACK}>

 

 

 

The 6.5's mount to the metal of the door, and the factory tweeters are mounted to the fiberglass-reinforced-plastic door panel. I mounted a pair of tweeters where the factory tweeters used to be, which is where you plan to mount your mid's. I fabricated a bracket that mounted to the factory tweeter mounting screws on the back side, got some plastic screw-head-hiders from the parts drawer at Home Depot, and put everything together and you can't see the screws from outside the factory grills.

 

The factory grills remove by unbending the tabs all the way around. Be careful, because if you bend and unbend them a few times, they might weaken. Best to only take them off once.

 

You won't have a buzzing problem from the mid's. Their frequencies are high enough that there is not much excursion there, so if it were me, I'd proceed with the plan you have outlined above. I might consider however, also mounting your tweeters in there...there's plenty of room, and then you won't be bastardizing your A pillars, and you'll be able to wire your MBQ crossovers without a lot of head scratching.

 

For the 6.5" woofers, you'll want to fabricate some sort of thick gasket to keep the bass from the back side of the speaker from making it around to the front. The door panels have a moulded plastic circle that mates up with a similar foam gasket on the factory speakers (which are mounted to the door). When you replace those factory woofers with your MBQ's, you'll want to duplicate what they did from the factory.

 

The factory wiring to both the woofer and the tweeter is full-range to both locations. Even though you see 2 different connectors, they carry the same signal. The woofer just shrugs off the high frequencies; the tweeter wiring gets cheezily-bass-blocked at the tweeter--that's their crossover. So you take the the female plug off the factory woofer, and attach it to the MBQ crossover, and then run new wire to the mid and tweeter from there, you can will need some sort of connector on the wires to the mid and tweet so you will be able to remove the door panel in the future. Would also be good you make the connections obvious, so that if 5 years down the road the power window stops working, the technician (who knows, might be you...) will be able to fix it.

 

You should de-wire the factory head unit for a test, and use a battery and the old woofer to confirm the speaker wiring polarity of the connector you end up using.

 

Click on "view vehicles" on my sig to the left, and there are a few pics that show you what my setup is.

 

Ask more questions, I'll give more answers.

 

<{POST_SNAPBACK}>