Car Alarms: Advice for a mom?, chevy tahoe, stereo subs

Question
My teenage son just got this fancy new stereo system installed in his 2002 Chevy Tahoe and we are wondering what kind of alarm he should have installed to protect his new system.  The place where he had his stereo,subs, etc installed is saying a Python (costs around $500) and I'm thinking that is way over doing it.  
Do you have any suggestions or is this what he really needs?  His stereo costs around $3,500 I think and his Tahoe is in mint condition.  We live in a low crime area but you can never be too safe.  Thanks and I look forward to hearing your suggestions.

Answer
This one is an interesting install for a novice,
and very doable.

I have this very successful &
most popular package in mind...
...Ok, the TOTAL
package I was thinking about when I first saw this
request was the GALAXY 5000 RSW 2 2WAY.
See the system at www.PAGINGALARMS.com
and let me know your thoughts on this one.
(up to 2000 foot range)

If this one does suit your needs,
click the following link to
make your payment:

1 GALAXY 5000 RSW 2 2WAY ALARM
REMOTE START/KEYLESS ENTRY
COMBO.

THE FOLLOWING IS EVERYTHING NEEDED IN THIS VEHICLE
TO INSTALL THIS PRODUCT INTO THE 02' TAHOE.

COPY CUT N PASTE THE FOLLOWING LINK
TO PURCHASE THIS PACKAGE!

https://www.paypal.com/xclick/business=installsupport%40aol.com&item_name=1+ASTRA+GALAXY+5000+RSW+REMOTESTART-KEYLESS+ENTRY-ALARM+COMBO+1-PLJX+BYPASS-MODULE+2+RELAYS+AND+SOCKETS&item_number=1+ASTRA+GALAXY+5000+RSW+REMOTESTART-KEYLESS+ENTRY-ALARM+COMBO+1-PLJX+BYPASS-MODULE+2+RELAYS+AND+SOCKETS&amount=224.90&no_note=1¤cy_code=USD

Or, if you want to subsititue the system for another,
let me know which system you want instead, and I will create a
payment link for that item with the required installation
interfacing equipment.

Stay Warm!

Robert Martin/Owner-Operator
ALARMTEK AUTO SECURITY ONLINE
www.REMOTESTARTCENTRAL.COM
(813) 963-3012 | 9AM TO 9PM EST.