vp cluster

Hey guys I've recently (3 months ago) put a l3 Calais cluster into my vp and just yesterday I got in and started it up and my speedo just started jumping around like a kid chucking a tantrum? When I drive it still jumps around (if I'm doing 60km it jumps from 50 to 100) and does this quite...

Hey.. i was wondering if any one could help me out.. i have a vp executive series II manual and it doesnt have a tacho.. I have read thru other threads for installing tacho's and most people said you can use the brown signal wire found attached to a loom in the front engine bay on the...