| Hi,
It would also be a good idea at this time before fitting any new item, to just start from scratch, say the battery, and go through each ternimal , block connecters and especially all the earths, remove, clean the earth point and fittings and rebuild before trying any new part. Doing this you know and have a piece of mind all the relative parts in the circuit are all ok.
Cheers | 
burtsp5
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