Water getting in thru firewall

[RedDragonATL]

Over the years, with CB install, 2 diff receivers, lights, inverter, etc., I've done some damage to the grommets where the wires run thru the firewall on the driver's side. It's pretty bad now when it rains hard. It's a total PITA to get at this spot, inside or out without taking a bunch of stuff out. I was looking to spray some expanding foam or something similar around the grommets to re-seal them. Best caulk or foam to use? Ideally I'd replace them, but the cost (time)/benefit doesn't seem worth it.

Thoughts?

Thanks, guys!

 

[YotaZach85]

Window/door caulk would probably seal it better than foam I would think.

 

[98OzarksRunner]

Mine did that too. The PO ran stereo power through there and just slit the grommet. I pulled that but run lights and ham radio power through there. I put some black silicone sealer from the auto parts store on it and it stopped the leaks. It's messy but gets down in the nooks and crannies.

 

[RedDragonATL]

Mine did that too. The PO ran stereo power through there and just slit the grommet. I pulled that but run lights and ham radio power through there. I put some black silicone sealer from the auto parts store on it and it stopped the leaks. It's messy but gets down in the nooks and crannies.

Cool...I think I even have some silicone sealer already. Will post back after project done and we get another hard rain.

Now if I could just get rid of my ants!

Jason