Wilson cell amp 801213...which antenna?

[cj80cruiser]

Wilson cell amp 801213...

I've been trying to fit a cell signal amplifier in my budget for a while now but before I pull the trigger on everything I remembered I have a Cb antenna in my shop from my old truck. Would that work or should I get the smaller magnetic antenna I see pictured with the amplifier?

 

[Bucket81]

It should come with an antenna for $280.... I used to install laptop docks in first responder vehicle. Specific antennas are used for certain frequencies. I have no clue witch one you need but if it comes with one use it.