Help with fault code

[xp800]

I have Leon 1.4 2001 after VAG COM scan have found fault logged.

Control Module Part Number: 1M0 035 186 C
Component and/or Version: Radio 0001
Software Coding: 00401
Work Shop Code: WSC 06441
1 Faults Found:
00856 - Radio Antenna
29-00 - Short to Ground
I replaced the stem as the rubber was starting to perish, and cleared the fault code, but, the code logs again. Any directions to solving the problem would be appreciated.

[Crasher]

It is the base at fault. Has the car got the original radio?

[xp800]

Yes the car has the original Aura head unit with disk changer.

[Crasher]

Then I would think you have a faulty aerial base.

[xp800]

Thanks for that, i've read it's a bit of a pig to get at , but i'll try it and see if this cures problem.

[xp800]

New base fitted and reception now back to normal, fault cleared and not returning. Part number for base 1P0 035 501 ONLY £10.69 icl. vat from dealer, thanks again.