roadster business cd radio

[baddogs]

I have a 01 z3 that i just replaced the radio with a aftermarket pioneer radio. The radio works great but the one issue I have is that my old oem radio would automatically adjust the volume according to the speed of the car.
I notice that the oem radio had a plastic shaft that screwed onto the back of the radio and fit into a sensor.
Is this what senses the speed and if so can i adapt it to my new radio?
thanks for any and all info!

[da_bull]

You cant adapt it, but which Pioneer do you have? A lot of the nicer Pioneers have what they call ASL (automatic sound level). It senses the increase in voltage from the alternator and will increase the volume that way. See if you have it and turn it on (its default is off). I am pretty sure the plastic shaft you speak of, is a support to hold the rear of the radio, to keep it mounted solid in the dash.