just got y fuel and boost pressure gauge today. I have an important question!!!!

OK. The gauge doesnt ahave an Isolator, but as long as I can check on it and make sure that the gauge isnt leaking then it would be ok to run inside the car wouldnt it. the instructions says it isnt safe to run it inside the car cause it could catch fire, but if it isnt leaking it should catch fire should it. I bought them thinking it came with an isolator but it didnt. I bought a radio relocator and I was going to put the boost gauge and fuel pressure gauge under the radio....what do you guys think?:hail2:
 
The only way I would do this is if I was going to sell the car to Osama Ben Ladin and never start the car after I installed the gauge.

You can do anything you want. The question is, are you willing to pay the price of possible injuries to yourself and your passengers? You will not know there is a leak until it either catches fire or you smell gas. Both possibilities bear severe consequences.