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Secondary gauges - 74 Challenger

garp

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Feb 22, 2016
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Hi all,
So the next undertaking for me is to fit a set (3 housed together) of generic water, oil and volts gauges in a removable binnacle hanging under the dash console. I've seen loads of folk with them ....
My current ones appear to work - temp gauge never goes above "C" for cold but doesn't smoke either, amps are dead on center and oil light hasn't gone on - but just in case they aren't functioning i'd like to be sure !
My question being: are there enough ports in my 340 to run both simultaneously or do I have to disconnect the "originals" and tap into their ports for the "new".
Any help or hints on this would be very welcomed - there is a vid' on Youtube but the geezer goes at his firewall with a forstner bit cutting a 2" hole for a single cable - after seeing this I decided not to follow his advice ! I'm guessing there must be several routes through already there - 74 Dodge Challenger,
Thanks in advance
garp
 
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