LGJ1984

Any one have this code come up? Truck has been at the dealership, parts were ordered and installed but did not fix the issue. Hearing that the tech open a case with GM because the readings that the scan tool is displaying doesn't make sense (or something like that). Here are the notes from the dealership thus far: Diagnostic - Check Engine Light: p045b 00 egr 2 PAY TYPEW COMPLAINT CAUSEtc#9-9569249791 egr 2 motor not holding commanded position under load CORRECTION NOTE MANAGER NOTE ADVISOR NOTE TECHNICIAN NOTEegr2- Exhaust Gas Recirculation Cooler, egr outlet pipe gasket ,egr cooler gasket ,egr vacuum hose clamp coolant PARTS NOTECLAMP COMES WITH SHORT OUTLET PIPE AS ASSEMBLY WITH HOSE

I was able to fix the chime issues by installing these inline with the front dash speakers: https://www.audiocontrol.com/car-audio/accessories/ac-lgd/ Another person on this forum was troubleshooting the same issue and we were PM'ing back and fourth. He was also able to resolve the chime issue with the part linked above.

The setup is awesome. When I had my 19 Silverado I was running all sundown speakers. 2.75 in the dash, 6.5 components in the front doors and 6.5 coals in the rear doors. Used the D-6.1200 to power those. I had a pair of 10" sundown Audio E series under the rear seat powered by a 1500W mono block also from Sundown. It was pretty awesome. Sold the 19 Silverado and picked up a 21 AT4 3.0 Diesel. Changed the setup a bit. 2.75 sundown's in the dash, Sundown 6x9 in the front doors and 6.5 coals in the rear. Running the JL Audio Stealth box under the seat powered with the Audio Control LC1.800 amp. I miss the sundown subs if im being honest. Wish I never sold them.

just ordered one from the dealership off a 2020. fits perfect and fixes that sag in the middle. You will also need 2 bolts, one at each end under the front fenders. Took 10 minutes to install and you only lose about an inch of ground clearance.

I did this exact setup on my AT4. Using the ready lift blocks in the back and the shocks all the way up the front sits about a half inch lower. I am able to fit 20x10 wheels with a -19 offset with 33x12.5.20 tires with zero rub. It is close, but fits.

So, no exactly your setup, but I installed the Ready Lift SST kit with the front Bilstein 5100 shock on my 21 AT4 with the 3.0 Duramax. I put the clip on the shock for max lift and added the 3" rear block to the back. I have about 1" of rake and am able to run a 33x12.5x20 without any rubbing issues.

Went from a 2019 Silverado with black and grey connectors to a 2021 Sierra with black and grey connectors. Because the connectors are the same I would assume the pinout is the same. Dash - Sundown Audio 2.75 speakers crossed over at 125hz to 20khz Front Doors - Sundown Audio 6x9 coax crossed over at 45hz to 20khz Rear Doors - Sundown Audio 6.5 coax crossed over at 65hz to 20khz I have tried opening up the crossovers 20hz to 20khz and it made no difference. Also, once I get my subwoofers figured out I will have to revisit the current crossovers. On a side note, these sundown speakers are awesome.... Incase anyone else is reading this and is interested, I also purchased the Soundskinz custom cutout sound deadening and that works great as well.

Correct, same as mine. Input channels on the loopback harness are white and grey for channels 1 and 2 on both incoming and return side. Green and purple are channels 3 and 4.

No chimes and alerts. Non Bose with black and grey connectors. I mounted the amp under the back seat and made my own bracket. I will attach a pic. Not using front high. Ran separate cables for dash speakers running directly to amp. front and rear door are using the LLJ Customs loopback harness. Ran this exact setup on my 2019 Silverado with black and grey connectors on my 2019 Silverado before trading it in and I didn't have this issue. Same harness, amp, speakers. Scratching my head on it. IMG_4567.HEIC

So I installed an LLJ Customs loopback harness into an Audio Control D-6.1200 amp. For some reason my blinkers are silent now. Anyone have any ideas? LLJ never responds to messages, emails or calls so not sure where to go from here.

Not sure if this has been posted or not, but I have been watching for 5160's to come back in stockmfor my AT4 Diesel and stumbled across this... https://www.bilstein.com/us/en/product-search-detail/?ItemId=2972832273118789803&YearId=4728741073082748634&MakeId=3406203325310476397&ModelId=5679221949025775276&SubModelId=3003517839329353585&EngineId=3466895969683645431 Looks a lot like the ready lift ones, but thought it was interesting.

Everything but the harness would work. You would need to purchase one from LLJ Customs, or make your own. I have no issues shipping.

1: Audio Control D-6.1200 Amplifier with ARC3 controller 2: 300AMP Stinger circuit Breaker, Stinger Distribution Block, Stinger power/ground wire 3: LLJ Customs loopback harness with 20' leads (Black and Grey connectors). This length allowed me to go down the driver side so the wire did not lay next to the power wire. This is a complete setup to install a dual amp setup in a 2019 and up Silverado/Sierra with the black and grey connectors. I sold the subs and mono block separately.. Price is $800 and I am in the DFW area. I will ship at buyers expense. You can message me here or email me at [email protected].

Thanks, I didn't know this existed. I will post over there...

So, not sure if there is a for sale/trade section but I have some gear for sale. 1: Audio Control D-6.1200 Amplifier with ARC3 controller 2: 300AMP Stinger circuit Breaker, Stinger Distribution Block, Stinger power/ground wire 3: LLJ Customs loopback harness with 20' leads (Black and Grey connectors). This length allowed me to go down the driver side so the wire did not lay next to the power wire. This is a complete setup to install a dual amp setup in a 2019 and up Silverado/Sierra with the black and grey connectors. I sold the subs and mono block separately.. Price is $800 and I am in the DFW area. I will ship at buyers expense. Would be better to email me as I don't check this site constantly. My email address is [email protected]