Fiberglassing dashboard, speaker pods

ok , just use the same technique and put the 5.25's wherever you want.

as far as just wrapping the dash in fleece and resining it,  I don't think it would work like that. You must do some framing and have good surfaces to staple the fleece to. 

I have never tried to just coat a dash with resin, sand/fill and paint it. If this could be done it would be easy for you. But I don't know if the dash material is porus enough for resin to stick well. Might be worth a shot if you are doing the custom dash anyhow you don't need to worry about ruining it.

Maybe someone else has tried that and can post if it works or not.

I don't have alot of experience using "sculting foam" and am not sure if it can be used for what you wish to do effectivly. I imagine if you can get the scuplting foam to properly adhere to the surfaces you wish to apply it to, and have the skills and tools to mold it smoothly, then it may be feasible.

Perhaps someone with experience doing it this way can be of more help. 

Now other then framing it out and basically forming a new dash shape over the old one, on some older cars I have restored and wanted to keep a more original look I have simply removed the damaged covering and repaired any flaws with resin and bondo or used these materials to achieve the shape I desire..

Then bring it to a local upolstry shop to stitch a new covering on it. (I have never paid more then 150 dollars for this service so it is a bargain compared to a new dash in most cases). I wish I had the know-how and equipment to stitch vinyl and leather but I don't. I can wrap virtually wrinkle free if the surface is perfect but in cases where it is physically impossible to stretch the material properly, it will require stitching or look horrible.

Like I have posted to others in the past, if you plan on totally redoing the interior and/or dash anyway why not just try your ideas and see what happens?  Start small. In the worst case you wasted a little time and money on materials. If it works out ,you have found a way that works for you and in the longrun that is what really counts....Good Luck.