Hi just looking for a bit of advice I’ve put a pair of air horns on the roof and looking where to connect them up. There’s 3 test point behind the front passenger corner that can be used to inflate tyres and was told to tap into one of them but I’m sure 2 of them are for the brake system and he was a mechanic that told me to do it.
Also been told could use the supply for the cab air bags.
Got the piping down to the front passenger corner already.
The truck is a 2004 164 scania
Thanks for any help
