If you don't have fairings covering the fuel tanks check under the drivers side rear corner of the cab on the frame there may already be an air quick coupler there.
If not you have a few options, some involved others simple.
The easiset is if you have trailer air brake connections on the back of the unit just go to the local truck stop or hdt parts store and buy one of the kits they have that consists of an air hose with a red glad hand on it (to use it simply attach to the red glad hand on the coach and push in the red button on the dash) or...
In order to plumb it in yourself you can either plumb a line to one of the accessory ports on the air drier (crawl underneath the air drier and look along the bottom edge and you will see a few ports in a row, a couple of which will already be used) or you can install a line in one of the unused ports on one of the remote air tanks (don't go to the one on your air drier, that is the wet tank) and I would recommend putting a shut off valve on the line as most quick couplers leak.
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2007 Haulmark 3329DS, Freightliner Coronado Chassis, 515hp Detroit, Meritor Freedomline 12speed Autoshift, 10kw Generator, In-motion Satellite.
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