Ariel and speakers turning off???

[cosie60]

Hi, I'm a new member and have a strange fault on my 95 3.0 Turbo Surf.
Can anyone help,
From time to time my rear speakers stop working and my electric ariel goes down. it happen for no apparent reason and the Hi Fi (A Kenwood) stays on with sound only from the front speakers!!!
if I switch the radio on and off it sometimes seems to re-set but not allways.
many thanks
Cosie60

[davemaxx]

loose connection block in the back of the radio perhaps.

[TonyN]

Check the wire from the head unit to the power arial and amp relay, and then the relay itself, its above the top of the brake pedal, box about 3" sq.