Need A Bit Of Info on Bose Stereo

[Mogleyo069]

Hey Guys,
i have a 2006 m3 hatch with the Bose system. i have a set of Subs from my old car and ide like to move them over, i was wondering if anyone had pulled the head unit out before and noticed if there are rca ports on the back of it..i doubt there are but i dont wanna tear apart the dash for no reason, i know i can run a line out box and use it but they never sound as good. also if i have to go that route i would like to tap into the stereo wires under the seat near the amp. it would make a cleaner install. does anyone happen to know the wiring layout at that access point?
thank you for any help or advice.

ps i noticed a wiring diagram in another post but it wasnt specified if this applied near the amp, sorry for any redundancies.

 

[Kain]

No.

 

[meicalnissyen]

not sure which diagram you refer to
the HU has no RCA
the wiring into the underseat amp is low level input, the harness wires are not coax but you can use it to feed the rca inputs of an aftermarket amp