156 radio cassette not working
Wondering if anyone has come up against this problem. Recently purchased car from my mate. He removed his CD player and refitted the original radio cassette but I cannot get it to work. I have the code. I have followed the instructions in the manual (ign key at MAR for hour) but the display on the radio never comes up with CODE and it shuts down completely after about 25 minutes. Red LED flashes all the time even when driving. Hope someone can help.