Can this me connected through a 12 volt car style in dash plug?

Thank you for sending your inquiry and our utmost apologies for the delay in response. We do not recommend it since the 1000-Watt Power Inverter has a voltage, current, and surge charge that we need to consider. The dash plug might not be able to handle the specification provided. Hope this answers your question. Should you have any questions, please contact us at 909-287-7111, Monday through Friday 8:30 am - 3:00 pm PST, and expect long wait times as we also are migrating to a new phone system. Again, thank you for your patience.