Wiring Diagram - BMW Z3M Roadster - Becker indianapolis PRO + Alpine 3553 Amp

[JF.Stachera]

Good Afternoon All!

I'm Jean-François, French guy from Lille, brand new on this forum.

I've got a BMW Z3M Roadster that I bought used. It was already a Home made HiFi system installed. I bought a becker indianapolis PRO autoradio and installation was made by the vendor.

My sound is poor inside the car and I would like to upgrade it.

I made the two Wiring diagrams in the file attached ACTUAL / UPGRADED to make it very clear.

I also attached some useful specs.

View attachment 26548988View attachment 26548989

Apparently the schems are not readable, I can send it to you by email via pdf file if needed.

Could somebody answer the Questions Q1 to Q5 that are asked into the attached document?

Thanks a lot by advance,

Jean-François

Click to read more...