All you can really ask for in a whip antenna are two things: quality materials (for longevity, durability and corrosion/rust resistance) and a high gain. Other than that, whip antennas are all the same.
That being said, I can personally vouch for both the quality and performance of Laird Tech...
I sure am running my stock console with that set up. It was tight with the scanner but it fit fine, and with the land mobile I had plenty of room. Just measure twice and cut once and you'll be fine.
However, that scanner is HUGE and most if not all 2m's and land mobiles are a lot smaller than...
I agree about the remote heads. It makes things sooooo much easier. However, they tend to be a lot more expensive than conventional. Anyways, here's what I did. These pics are with a scanner but I now have an I-com land mobile in the same place instead:
In the last pic you can see where I...
Any FMJ round will over penetrate. If you get the right 9mm round however, they don't have any over penetration issues.
And don't forget your basic laws of physics, you make much more energy with speed than you do with mass. Therefore, a faster round will always be more mass-efficient than a...
Nah, you can find them for waaaay cheaper than $600.
Here is one.
I don't know the dimensions of a double din unit but I do know that you can fit a double din in an XJ with some minor trimming. I think 7" is close to double din size.