The best way is to have a professional do it No kidding! Our local fire dept. has days where you're welcome to stop by, or you can make an appt. They put them in TIGHT!, which is what's most important. My 3 yr. old makes me take certain exit ramps at speed, as he exclaims, "Wheeeeeeeeeeeeeeeeeeeeee!!!"
Congrats BTW!
Tim