what gauge to Sony head unit

[retiredblue 10+ year member]

My wiring harness has a small (like 18 or 20??) gauge 12 v wire to the head unit and the harness from the head unit also has a small gauge (hot) wire coming out of the head unit, is this ok? I mean I do not see any other way to wire this up, the box says it is a 200 watt stereo, it's been like 30 years since I hooked up a stereo, so you can imagine, I have a big amp to hook up also but I gotta get by this first. Thanks in advance- hope this makes cense -

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[Rich B 5,000+ posts]

You wont gain anything splicing a bigger wire onto the small wiring on the harness.

Wont hurt to use a somewhat bigger wire either (just dont go smaller), so if you already have some wire thats a little bigger you might as well use it.

 

[retiredblue 10+ year member]

roger that sir, I'll just keep on going then