If it's the fretwires on the fingerboard, tape every each of exposed fingerboard wood with masking tape, then use steel wool to brush away all that disgusting mould. Any other parts, i suppose you could regular polishers eg brasso etc.
If it's the fretwires on the fingerboard, tape every each of exposed fingerboard wood with masking tape, then use steel wool to brush away all that disgusting mould. Any other parts, i suppose you could regular polishers eg brasso etc.
If you fear damaging any partsof your guitar, its best to unscrew the pickup and remove the pickup cover and work from there.
If the corrosion or mold growth is extensive, polishing components won't work well. I've restored my chrome knobs and the saddles on my wilkinson tremolo back to its original shine by using a combination of fine grade steel wool, autosol and quite a lot of patience.
A better option is just to purchase new chrome pickup covers or accessories from allparts. I believe davis stock them. Pickup covers go for $10.