New to forum. Jut showing off my 04 grand prix gtp comp g

[daltman360]

my friend that does alot of radios just bypassed the braking park by hooking the brake park wire to the ground on the radio and it worked

[GrandPrix06GT]

my friend that does alot of radios just bypassed the braking park by hooking the brake park wire to the ground on the radio and it worked

Yeah I heard that works and doesn't work. I read somewhere with the newer s it won't work but I have no clue. It was $9 and just has 3 wires to hook up. I also need to get a dremel in there n shave the bottom hump so mine can sit more flush. It bumps at the bottom from it. So if you have the interface built in why would you need it? Or it just has the aux port looking thing for it you mean?