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Discussion Starter · #1 ·
When installing an aftermarket head unit and connecting the adapter harness to the head unit harness what is the best way to do so? I used simple wire crimp connections then wrapped in electrical tape, but a friend said I should've soldered the wires. Are the connections I used alright or should I take the wires out and solder them?
 

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i did the exact same thing you did and i had a professional alpine installer helping me and that was the way he always does it. soldering and shrink wrap is better just because its more permanent and wont have a chance of loosening off or getting pulled out etc. but if you crimped them properly and taped em up tight there wont be a problem at all.
 

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Discussion Starter · #3 ·
Alright thanks. I've always used crimp and tape for wiring before and never had any problems but I haven't done something as important as a head unit so I just wanted to make sure.
 

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Discussion Starter · #5 ·
I've already installed my head unit a couple days ago. I used normal crimp connectors then taped over them.
 

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Your method is fine. Don't worry about it. Soldering is overkill. The heat shrink connectors are nice but really not necessary.
 

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Solder connection are best because it is a tighter, more secure, connection that has lower resistance. Any crimped connection will generally have a higher amount of electrical resistance (This is what I have been told by audio installers and electricians). Having said that, the wiring in question has very low voltage and it isn't usually noticeable if they are not soldered. Installers who insist on soldering do so because they could be concerned with electrical noise being an issue with the source unit connections and it is obviously very durable and has little chance of working its way loose.
 
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