Yeah, I thought of that, but the grommet in question is behind lots of pop riveted shields, and already has 3 thick bundles of wire through it... =(

I want to keep the wire on the same side as the battery to minimise voltage drop, and also, all the RCA cables are on the other side of the car...

Jazz
(List 112, Mk2 12 gig #40. Mk1 4 gig #30. Mk3 1.6 16v)
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Jazz (List 112, Mk2 42 gig #40. Mk1 4 gig #30. Mk3 1.6 16v)