Hi all I have just purchased a 406 lx hdi 90 ac&sn All working fine bar the radio. Turn the volume up as high as it will go and you can hear it like its on volume 1. Same happens on sat nav voice . It seems like this is just a preamp type model pioneer pu 1646. I can't find a jbl amp in the boot anywhere so i assume there must be a peugeot type amp built in the car somewhere. Correct me if Im wrong and please help me find the amp if there is one as I dont think the pioneer is at fault.