Constant Speaker Cracking/crackling Sound After Splice

[stealr22]

In an attempt to hook up another amp to run my high’s and mid’s I have encountered a problem. I spliced into the two front speaker wires coming out of the PAC (OS2). Now my Front Right works fine however my Front Left emits a cracking sound (only comes from the negative wire.) I have checked and the speaker is not blown.

The wires I connected are properly matched up. So then I disconnected everything and hooked it up to how it was before I spliced. The cracking sound is still there.

So now I ran a jumper wire from where I spliced on the Left Front Negative (output of the PAC OS2) to the Left Front Negative output of my Head Unit (bypassing the PAC OS2) and the cracking sound stopped.

Now for the fun part – the volume was very loud –way louder than the right side. I could not turn the volume up a quarter of the way because it was way too loud. I removed the jumper wire and hooked everything back up to spec and the cracking is still there?

 

What is the cause/origin of this problem

I have a 2007 Silverado Classic with Bose factory speaker system except for a XOVISION Double DIN (PAC OS2 Module Connected) and Fosgate P6002 Amp running two Fosgate P3’s.

I Appreciate any help or comments given!

Thanks!

[thecraft]

If you have an aftermarket head unit, why not just connect the amp to the RCA outputs rather than tap into the speaker wires?

 

The fact that the crackling only occurs when you connect the amp downstream of the OS2 makes me think that the OS2 is the problem here. Is the gain adjustable on the OS2? Does the crackling also occur on the amp you've connected too?

 

Personally, if it were my vehicle and I added an aftermarket head unit or amp, I'd also bypass the factory Bose amplifiers.

[stealr22]

If you have an aftermarket head unit, why not just connect the amp to the RCA outputs rather than tap into the speaker wires?

 

The fact that the crackling only occurs when you connect the amp downstream of the OS2 makes me think that the OS2 is the problem here. Is the gain adjustable on the OS2? Does the crackling also occur on the amp you've connected too?

 

Personally, if it were my vehicle and I added an aftermarket head unit or amp, I'd also bypass the factory Bose amplifiers.

 

i did connect the amp to the rca's however i was tapping in the speaker wire from the additional amp i was trying to put in ( sorry if i didn not explain it properly).

 

thanks though i will check to see if it had a gain control