Airride lines to gauges

[Mgicm]

If you have your airride tank and compressors under the bed floor, how are people running the lines for the gauges. DO you come under the cab or rear wall of cab and run into cab ..or do you run to firewall and then inside cab? Trying to see if you run them through the rear of the cab ..do you run them on the floor to gauges on the dash? Thanks