In Car Dab

Has anyone fitted a dab head unit in their car themselves I've fitted head units long time ago the only thing I'm not 100% on is fitting an aerial that's good enough for dab,head unit itself should be easy enough as I can buy the racks plate and connectors online the windscreen fitting aerials are not that good for strong rd option of dab where I am located,either it will be a ma g mount or replacement of the standard roof aerial,it's more the cable routing through the headliner im unsure of how easy that will be thanks folks.