Would this work?amazon link

Thanks! This is the suggested/frequently purchased antenna that Amazon recommended - any input on that? https://www.amazon.com/TRAM-703-HC-Center-Load-Antenna/dp/B002IP3WV4/ref=pd_bxgy_img_2/139-3041222-8826216?_encoding=UTF8&pd_rd_i=B002IP3WV4&pd_rd_r=430babe9-2497-4599-85c0-4f9ae783eaf7&pd_rd_w=M7VEr&pd_rd_wg=NLcYc&pf_rd_p=f325d01c-4658-4593-be83-3e12ca663f0e&pf_rd_r=Q8SQSH4HM1P30NY3E0RB&psc=1&refRID=Q8SQSH4HM1P30NY3E0RB

Certainly can get out the door for under $100. Here are two examples from Cobra alone. Here's one for $30, even. Factoring in installation by a pro, I'm not sure. I don't know what that would cost. It's incredibly easy to just do yourself, though, particularly if you're going with a cig lighter as your power source and a mag mount antenna.