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Dash/Stereo Removal, Bose Amp, Speaker Install instructions

17700 Views 52 Replies 11 Participants Last post by  rtd16
Use at your own risk, but included are the instructions that came with my purchase.

This should help you out take out the stereo, take apart the doors, replace the tweeters too.

I'll be swapping out my stuff soon.

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For those of you planning on having an amp installed to power the door speakers.

A few months ago I had an LC2i (Line out Converter) for the JBL Spare Tire subwoofer. They spliced off the rear output of the factory amp, no problem worked great.

Before I went to Cabo I had them install this JBL 4 channel amp since the LC2i has an extra set of RCA outs. Sounds fantastic just one problem, i wasnt getting any voice audio suchs as phone calls, reading of texts, voice navigation, etc. i called them back up and I already knew what the solution was. They had forgot to splice off the front outputs because all those voice features are always focused on the front speakers in chevys.

So if you plan on adding an amp please have them splice off the front output. Another thing be sure to turn down the chime volume and the voice volume to more suitable levels because this particular amp has 3 times the wattage of the factory amp.

Later this week I will be swapping out the front speakers and tweeters with a component set, because currently the tweeters are being powered from the factory amp. Also my left tweeter is dead. Not pictured is running the tweeter wires through the headliner down to the pillars.
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Splicing is so old school when there is a Plug N Play harness.
Splicing is so old school when there is a Plug N Play harness.
when i initially did the subwoofer install they didnt have plug and play harnesses
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Ya I had super tweeters but they won’t fit so I got the sundown ones. Everything will be in the spare tire area then the box will take up most that trunk area.
I have 2 amps, all 0 gauge wire,dsp all in the spare tire are and have plenty of room. System bangs so loud and love it. For my setup facing the port straight up seems to sound the best.
What do you think the mounting depth is for the tweeters
I have 4 kicker 6.5's if you haven't bought them yet. Went with deaf bonce mid bass. Can't even explain how loud they are, it's insane.
I have 4 kicker 6.5's if you haven't bought them yet. Went with deaf bonce mid bass. Can't even explain how loud they are, it's insane.
I ended upselling mine for almost $6k profit. But now my daughter wants one so just bought another one 🤦‍♂️ I have 4 deafbonce 6.5’s , sundown tweeters , then sundown amps and subs for it along with audio control dsp. Should be nice for a 16 year old and1st car lol
Can someone point me in the right direction for that plug and play harness you mentioned? @Trev68 cause I can't find one anywhere that says it integrates with the 2021 Trailblazer.
Can someone point me in the right direction for that plug and play harness you mentioned

? @Trev68 cause I can't find one anywhere that says it integrates with the 2021 Trailblazer.
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Thank you @Rockstarpools. I happened to stumble upon a post in another thread that mentioned LLJ Customs. They simply don't pop up within the first few pages when searching on Google or otherwise.
Thank you @Rockstarpools. I happened to stumble upon a post in another thread that mentioned LLJ Customs. They simply don't pop up within the first few pages when searching on Google or otherwise.
Sorry not on here a hole bunch lately. Glad you found it.👍
I understand this is an old thread, anyone know if disabling anc will overall improve bass without a sub/amp?
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