Is300 stereo change to aftermarket single dim issue

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Before I start I have spent quite a few hours looking and reading posts, but most are old and photos no longer available and also many post were pre having 3rd party harnesses available, I’d prefer to avoid cutting and splicing 

ive removed the 6cd changer, got the new fascia, got a stereo, got everything I thought I needed and built and framed it etc, went to plug it in and no go.

the plugs that are quoted and in the set I bought have 2 separate connections but only 1 come out of the back of the CD player and are all different shapes. I have read I may need to access the amp wiring but it’s pretty tight around the amp so will wait before having to remove if required

photos, CD player back, cable plugs into right side socket then I assume through the dash behind the glove box to the amp, and other photo is the adapter kit I got which is the same as Halfords etc for a Lexus/Toyota loom

does anyone have any guidance please?



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Had mine swapped out for a double DIN unit a few weeks ago but being terminally cack handed I got a local fitter to do mine. Nothing out of the ordinary as far as I'm aware but I do know the amp behind the glovebox has to come out/be bypassed. My guy's in Chesterfield if that's any help?

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Had mine done a few years ago. I was on the third six CD changer (first one replaced under warranty and the second sourced from a scrap yard when the second failed). I had a fitting company do it and they had to remove the amp and used an amp bypass harness and double din fascia adaptor. Took a few hours to do but the job was a good one and has worked fine since.

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Appreciate the replies, I’ll remove the amp next as I’ve found a bypass harness as both said.

 On the plus side my dash looks nicer even if I still have no music to listen too

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So amp out, take off glove box completely ( not like me who leant on it whilst dangling and snapped a hinge)

I took off the bottom side plastic plate, covering fuse box, screwed on at back and clips down door frame side

nut at top of amp holding bracket and one under glove box area holding other bracket 10mm hex. then top and bottom brackets have 2 screws each, 8mm (hex) and then both are zip tied to a thick wire loom.

it is clearly mounted before anything else goes in so doesn’t have a natural out but got it out through the bottom carefully as there are a lot of wires that are tightly mounted, 

wish id taken more photos, but failed, shredded knuckles, and only photos are end cables and back of amp, the brackets were difficult to remove as at best was a quarter turn at a time and the top one has raised curved sides


now to find the bypass cable


EDIT, amplified bypass PC2-92-4, non amplified PC2-93-4




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