Z3 Amp Bypass Question

[staggerwing17]

Hello! I am bypassing the HK amplifier in my 99 Z3 2.3. I have been successful and am now using my new head unit to power the stock speakers which are all being replaced. The amp has 3 plugs - one of them is a 6 pin socket. Below are images of the amp and then a closer look at the 6 pin socket. Does anyone know what the function of the wire coming from the plug in the socket is for? Any help is appreciated and as always thank you!

 

[Mario]

That wire is the GAL signal - basically a wire that tells the amp which speed you are going so it can increase/decrease the volume based on the speed/road noise - interestingly this is I believe present only in roadsters.

If you are not using it, are you going to be selling it? I might be interested

 

[staggerwing17]

That wire is the GAL signal - basically a wire that tells the amp which speed you are going so it can increase/decrease the volume based on the speed/road noise - interestingly this is I believe present only in roadsters.

If you are not using it, are you going to be selling it? I might be interested

Hi Mario! Thanks for the information! What is the GAL? Something to do with speed and volume? Anyway, sure I would sell the amp to you! Where are you located? I have the amp out of the car - The 2 main plugs are still in the car and neither in great shape as I needed to see the pin numbers and the wire going into that pin. But I would include them with the amp anyway. I also have the GAL plug and cord but have not cut it yet. I have the bracket as well. I have attached images. Could we do $60 US plus shipping to wherever you are? Let me know and thanks!

 

[Mario]

Its London - I thought you were UK based - postage might be a bit of a deal breaker but let me have a think

 

[Chris_Rossi7]

How did you bypass the amp with the speaker wires did you have to cut the plug and then run new wire to each speaker?